Common side effects
- Upset stomach
- Headache
- Dizziness
- Numbness in the mouth (normal, and short-lived)
The liver risk
Kava has been linked to rare cases of severe liver injury, including hepatitis and liver failure. The FDA issued a consumer advisory about this risk. It's rare, but it's the main reason to take kava seriously.
Heavy, long-term use
People who drink large amounts of kava over long periods can develop a dry, scaly skin condition sometimes called kava dermopathy.
Interactions
Don't combine kava with alcohol or with medication or supplements that cause drowsiness. Kava may also interact with medications processed by the liver.
Who should skip kava
- Kava drinks are for adults 21+. Skip them if you're under 21.
- Skip kava if you're pregnant or breastfeeding.
- Skip kava if you have a liver condition or drink heavily. Kava has been linked to rare cases of serious liver injury.
- Skip it if you take antidepressants (including SSRIs), sedatives, sleep aids or medications that affect the liver, unless your doctor says it's OK.
- Rules on kava vary by place. Check your local rules before you buy.
- One can or shell is one serving. Don't mix kava with alcohol, and don't drive after drinking it.
These are general cautions, not medical advice. If you're unsure, talk to your doctor or pharmacist.
Questions people ask
What are the side effects of kava?
Upset stomach, headache and dizziness are common. Rarely, kava has been linked to severe liver injury.
Who shouldn't drink kava?
People who are pregnant or breastfeeding, have liver problems, or take medication that affects the liver or causes drowsiness.
